Head-rest.



Patented June 9, 1903.

PATENT @rrrcn.

GEORGE-L. GRIMME, F BUENOS Arnns, ARGENTINA.

HEAD-REST.

SPECIFICATION forming part of Letters Patent No. 730,531, dated June 9,1903. Application filed November 26, 1901. Serial No. 83,504. (Nomodel.)

To all whom, it may concern:

Beit known thatLGEORGE LGRIMME, a citizen of Argentina,residing at 126Maipui street, Buenos Aires, Argentina, have invented new and usefulImprovements in Head-Rests, of which the following is a specification.

My invention relates to head-rests.

With the head-rests heretofore employed for carrying out operations inthe month,

nose, throat, and so on the head itself has generally been held ininclined cushions between the temples and occipital or only at one pointof the hind head. By head-rests of this kind the patient isinconvenienced to no inconsiderable extent, and the operation exceedinga certain short time is then felt more by the nervous patient on accountof the unsuitable support of the head. By the apparatus constructedaccording to my said invention the head is supportedonly in the nape andat the lowest point of its hind part, so that it lies free.

In the accompanying drawings my improved head-rest is represented.

Figures 1 and 2 are side views showing different positions. Fig-.3is afront view. Fig. lisa section on the line A B of Fig. 2. Fig.

5 is a front view showing the frame for the cushion.

The head-rest is held by a bar a, in the guides of the operating-chair.At its upper end the bar carries a guide I), wherein the slide c'isadapted to be shifted. As shown, this is efiected by means of the screw(55, which displaces a nut fixed in the slide 0. The screw d is turnedby the milled head 8 at the rear end. Instead of this device use may bemade of a rack arranged on the slide and engaging with a pinion adaptedto be turned from the rear end of the head-rest; but any other mechanismis available which will efiect slight movements and hold the slide 0 inany desired position.

In the slide 0 is arranged a block g, fitted to be turned upon trunnionsf and upon which the nut h bears. The block has a bore for the passageof a screw-threaded spindle 'i, upon which the not his displaced. Therest or support It is connected by a lower joint m with the slide a andby an upper joint 'n with the spindle i, so that by turning the nut 7bthe rest or support It may be placed in {a more or lessinclinedposition, while by displacing the slide the rest or support isadjusted in the horizontal direction.

The rest or support it comprises a frame, (shown in Fig. 5,) which maybe made of thick wire soldered together. To this frame are directlyattached the'joints 1n and n. The frame receives the cushion, whose formcorresponds to the lower thirdof the hind head and of the nape.

By reason of the form of the rest fitted to support the nape the patientnot only is more comfortable, but will not be liable to change theposition once assumed, which may easily be done with the head-restshitherto used. Any other position of the head in which the patients napedoes not lie in the rest is felt to be wrong. If the nape hears upon therest, the latter may be shifted forward and backward, higher and lower,without any need for the patient changing his position, raising hishead, ormoving it in any way. A special advantage of the improved head;rest lies in the fact that the patients head is freely accessible fromall sides and that the operation is not interfered with by longprojecting parts, such as is the case with the headrests heretoforeused.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A head-rest comprising a guide-piece having a guideway, a support ofsuch form as to lit and partially inclose the nape and lower part of theback of the head, a slidepiece held in the guideway adapted foradjusting the support in the horizontal direc- .tion pivoted to thelower end of the support,

a screw-threaded spindle for adjusting the inclination of the supportpivoted at the top tothe upper end of the support, a block se cured bytrunnions to the guide-piece and a screw-threaded not for the spindlebearing on said block, substantially as shown and de:

scribed.

2. A head-rest comprising a guide-piece having a guideway, a support'ofsuchlforrn as to fit and partially inclose the nape and a screw-threadedspindle for adjustingthe inclination of the support pivoted at the topto the support, a block vibratorily mounted in the guideway and ascrew-threaded nut for the spindle bearing on said block, substantiallyas shown and described.

In testimony whereof I have signed my name to this specification in thepresence of 20 two subscribing Witnesses.

GEORGE L. GRIMME.

\Vitnesses:

D. MAYER, J. N. MILLER.

